Owing to the fact that it can very easily lockdown the opponent, Bagooska has a maintenance cost in that the controller has to detach an Xyz Material from it during each of their Standby Phases, with Bagooska destroying itself if no Xyz Materials can be detached
So, if youre the type of player who requires a little extra elbow room, theres a mat for that
For Master Ball collectors, it adds another wave of pattern cards to chase
Anguished Unmaking helms another quick $8, and Chromatic Lantern and Birds of Paradise another $5 each
Spellskite is a card that in no way helps with the combo (I guess that isn't totally true as it can be part of the attack squad) however it protects you and usually all the different parts of your combo as well
Sometimes I have to double-take because Im like, Wait did that really say that? And yeah it usually did